Home / 12,255.52-18,374.64-7,324.96

Finding the Fourth Proportional to 12,255.52, 18,374.64 and 7,324.96

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Solution

The fourth proportional to 12,255.52, 18,374.64 and 7,324.96 is: 10,982.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,255.52 : 18,374.64 = 7,324.96 : x
  2. Step 2: Convert to fraction form
    12,255.52/18,374.64 = 7,324.96/x
  3. Step 3: Cross multiply
    12,255.52x = 18,374.64 × 7,324.96
  4. Step 4: Simplify right side
    12,255.52x = 134,593,503.01
  5. Step 5: Solve for x
    x = 134,593,503.01/12,255.52
  6. Step 6: Final answer
    x = 10,982.28

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.